Portland Weather in December

Portland in December sees pleasant temperatures, with highs around 20°C (68°F) and overnight lows of 10°C (50°F). Overall excellent conditions make it one of the better months to visit.

Rainfall in Portland in December

Typically, you can expect about 7 days of rain this month, with 33 mm (1.3 in) on average. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Portland in December

Weather in Portland is at its excellent in December. Highs reach 20°C (68°F), while nights settle around 10°C (50°F). The winter season is characteristic of December. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 10°C (50°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Portland in December

You can expect a moderate amount of sunlight, with approximately 133 hours. This means a pleasant mix of sun and overcast.

If you're a fan of comfortable temperatures and drier conditions, December is a great time to visit.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Portland's climate page.

Portland Temperature in December

Min Temperature 10°C (50°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 23%  

Precipitation 33 mm (1.3 in)  

Rainy days 7 days  

Humidity 76% *  

Sunshine 133 hours *  

Percentage Sunshine 42% *  

* Data from: Corpus Christi, the United States of America (11 KM, 6 Miles).

What to Wear in Portland in December

Comfortable temperatures call for an easy wardrobe in December. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Light rain is possible, so consider bringing a small umbrella or rain jacket. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Portland in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

10/10

Walking

10/10

Camping

10/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Portland's climate page.

More climate data for Portland

Temperature Rainfall Sunshine Humidity

See the full Portland climate overview or explore weather in the United States of America.